What Researchers Did
Researchers in Turkey studied 50 patients with sudden sensorineural hearing loss (SSNHL) who received a combination of intravenous steroids and 20 HBOT sessions at 2.5 ATA for 60 minutes each, measuring hearing improvement across different sound frequencies.
What They Found
Hearing thresholds improved significantly across all tested frequencies after combined treatment (p < 0.001 for all comparisons). Low-frequency hearing improved significantly more than high-frequency hearing (p < 0.01). Right ear hearing loss was present in 54% of participants.
What This Means for Canadian Patients
Sudden hearing loss can be a medical emergency, and treatment within the first 72 hours is critical for the best outcome. Canadians who experience sudden unexplained hearing loss should seek urgent ENT care and ask about adding HBOT to steroid treatment. Private HBOT clinics in major Canadian cities offer this protocol.
Canadian Relevance
No direct Canadian connection identified. HBOT for sudden sensorineural hearing loss is not currently OHIP-covered, so Ontario patients would likely pay out of pocket.
Study Limitations
This study had no sham/placebo control group, making it impossible to confirm how much of the improvement was from HBOT versus steroids alone.